Improvement in felly-joint plates



l. IVES.

,Fellue-loint Plate.

Patented May18,1875.

THE GRAPHIC C0.PHOTO-L|TH.39 l4] PARK PLACE, NY

UNITED STATES PATENT QFFICE.

\VOODRUFF & 00.,

OF SAME PLACE.

IMPROVEMENT IN FELLY-JOINT PLATES.

Specification forming part of Letters Patent No. 163,495, dated May 18,1875; application filed August 5, 1874.

To all whom it may concern:

Be it known that I, JAMES IVES, of Mount Carmel, county of New Haven andState of Connecticut, have invented a new and Improved Malleable-IronFelly-Joint Plate; and I do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccompanying drawin gs making part of this specification, in whichFigure l is a perspective view of my malleable-iron felly-joint plate.Fig. 2 is a longitudinal section. Fig. 3 is a transverse section in theline 00 w of Fig. 2. Fig. 4 is a plan illustrating how the felly-platesof my construction are cast attached to a gate-bar in the process ofcasting them.

The nature of my invention consists, first, in a malleable-ironfelly-joint plate, cast in segmental form of the ordinary thickness fromend to end along its central or bottom portion, and from said portion ofa gradually reduced thickness, so that the edges of the sides will bealmost flush with the sides of the fellies without being much embeddedinto the wood, said joint-plate having nut -seats of sufficientthickness for countersunk bolt-holes to be east through them.

By this feature of my invention I am enabled to make as good if notbetter felly-joint plates from cast metal as are now generally cut outfrom wrought metal without the inconvenience and objection of having theedges of the sides as thick as the body or bottom portion, and alsowithout the objection arising from burrs being formed on the wroughtplate Where the bolt-holes are punched through the metal, such burr, inconnection with the burr which is usually formed around the hole in thenut by cutting .the screw, preventing the nut from coming down to itsproper place upon the plate.

Second, my invention consists in dowelpins on the concave side of thejoint-plate 011 each side of the bolt-holes, for the purpose ofpreventing the wood of the fellies from being split by the bolts, andkeeping the joint of the felly from moving sidewise, and assisting {hebolts in keeping the plate from shaking oose.

To enable others skilled in the art to understand my invention, I willproceed to describe it.

My mode of making the plate A of malleable iron is as follows: I preparea mold, which will turn out a casting with thinned sides'a a, and athick bottom, I). That part of the mold which is to produce the thickestpart of the article I terminate with square ends, and connect one ofthese ends with a gate similar to the casting a c which is formed inthis gate. This gate has beveled branches, one for each mold for a jointplate, as shown. In order to attach the mold for the joint-plate to thegate-mold it is necessary to make the ends of the joint-plate mold muchthicker than the portion thereof which forms the thinned edges, so thatthe metal will run around the boltholes and fill out the mold for theplate, and also that there shall not be a liability of a break occurringbetween the gate and the plate portions of the molds, and therebyspoiling the plate. By having the ends of the plate square, and attachedto the thinnest end of the branches of the gate, instead of round, as inthe (are of wrought-iron plates, I secure a straight line of fracture orseparation, and the plates can be knocked off in a condition which willnot require them to be finished with a wheel. In the mold I provide formaking the bolt-holes a with countersinks 0?. I also provide for castingpointed dowels ff on the concave surface of the plate. These dowels areout of line with the bolt-holes, and at each end of the plate. They maybe at other points if deemed best. The felly-plate being thick at itsbottom and near its ends, allows nut-seats g g to be formed at its ends.

It will be understood that the edges of the malleable-iron folly-jointplates are so thin that it would be impossible to attach them to a gate;and if this were practicable, another difficulty would beencountered-they could not be broken off from the gate with their curvededges finished enough to answer to be sent out to the trade.

The cast malleable plates which I produce may require to be hammeredslightly against the face of the wooden fellies in order to have thementirely flush with the surface.

I am aware that a wrought-metal felly-joint and nut-seats, all as andfor the purpose set plate has been made with a thick middle porforth.tion from end to end, and with thinned or ta- 2. A cast-iron felly-jointplate, having dowpered Wings and flat nut-seats, and therefore el-pins,tapering wings, bolt-holes, and nutdo not claim such wrought-metal plateas my seats formed in the manner and for the purinvention; but posesdescribed.

What 1 do claim is- JAMES IVES. 1. The new article of manufacture, viz.,a Witnesses:

felly-joint plate made of malleable cast metal, ELAM J. DICKERMAN,

and with tapered sides or wings, bolt-holes LYMANH. BASSETT.

